US2060730A - Block for block and tackle - Google Patents

Description

NOV. 10, 1936. GILLESPIE I 2,060,730

BLOCK FOR BLOCK AND TACKLE Filed May 1, 1933 ATTORN EYS Patented Nov. 10, 1936 UNITED STATES PATENT QFFIQE 5 Claims.

This invention relates to blocks that are primarily designed for use in connection with the rigging of various miniature or toy hoists and the like, and more especially for use in the construction of ship models.

In the construction of ship models where blocks and tackles are used, it is practically impossible to make blocks with movable sheaves or pulleys that are capable of efiicient operation, as in practice it has been found that the rigging strands become caught or clamped between the bodies of such blocks and the pulleys, thereby rendering the same useless, with the result it becomes necessary to make the blocks into a solid piece, with the sheaves or pulleys represented, but integral with the blocks, in which case the strands freely slide over the represented sheaves or pulleys, and through the block.

Heretofore blocks with movable sheaves or pulleys in miniature size have been manually cut out of wood or relatively soft metal, such as lead or the like, but it is obvious that due to the size of the blocks, for the use set forth, that process is very slow and requires expert workmanship, which is overcome by casting the blocks into single units and with the proper casting apparatus, blocks can be produced that truly simulate full size blocks, therefore it is the purpose of the present invention to provide cast blocks and the like, of all types in miniature size that are capable of performing their intended function, as well as being substantially perfect simulations of the full size articles, but without movable parts.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawing and specifically pointed out in the appended claims.

In describing the invention in detail, reference will be had to the accompanying drawing wherein like characters denote like or corresponding parts throughout the several views, and in which:

Figure 1 is a perspective view of one form of my block which forms the subject matter of the present invention.

Figure 2 is a perspective view of another form.

Figure 3 is a perspective view of a spool type of block.

Referring to the drawing in detail, and particularly to Figure 1, it will be noted that the block therein includes a body 4301. of substantially oval configuration, and provided with fiat sides.

Surrounding the body 4311 and extending about the same at right angles to the curved surface thereof, is a rib 43 having a rounded outer surface, it being obvious that the rib is cast integral with the body, and rising from the rib is an eye 44, for the obvious purpose of receiving a suspension element for the block.

In Figure 2, I have illustrated a modified form of block which is substantially similar to that shown in Figure 1, with the exception that in place of the rib 53 and the eye 44 the body thereof, which is indicated by the reference numeral 4319 has a substantially deep groove 53g disposed therein and about the same at right angles to the curved surface thereof, the groove being for the purpose of receiving a suspension element as will be apparent.

In both forms shown in Figures 1 and 2, there is provided strand receiving guides 46 which are shaped to simulate sheaves and are cast integral with and within the bodies thereof. The bodies of these blocks are also provided with spaced parallel openings 4? extending through the same incident to the guides and following the shape of the latter, to provide flared outer ends therefor, through which strands of rigging may pass to operatively engage the guides.

In Figure 3, I have illustrated What may be termed a spool type block that includes a solid one piece cylindrical body having fiat sides and provided with a groove 45 disposed circumferentially about the rounded portion thereof to receive a suspension element for the block, and the body is provided with openings 45c extending longitudinally therethrough at right angles to the grooved surface thereof, for the passage of strands of rigging therethrough.

From the above description and disclosure of the drawing, it will be obvious that I have provided a block which is practical for use with miniature or toy hoists, and the rigging of ship models, in that the rigging strands will freely pass through the openings provided for that purpose, and thereby will not hang or be caught, as is usually the case with miniature blocks having movable sheaves or pulleys and my blocks are cast integral into single units, therefore they can be made in an easy, expeditious and inexpensive manner.

It is thought from the foregoing description that the advantages and novel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

The invention having been set forth, what is claimed is:

1. A cast miniature block for use in the rigging of a ship model, comprising a one piece body having means disposed completely about the exterior surface thereof and designed for receiving a suspension element for the block, and said body having openings therethrough for the passage of strands of said rigging.

2. A cast miniature block for use in the rigging of a ship model, comprising a one piece body provided with means disposed completely about the exterior surface thereof and designed for receiving a suspension element for the block, strand guides simulating sheaves cast integrally with and within the body, the latter provided with spaced parallel openings extending through the block incident to the guides, and said openings following the shape of the guides to provide flared outer ends therefor through which strands of said rigging may pass to operatively engage said guides.

3. A cast miniature block for use in the rigging of a ship model, comprising a one piece substantially oval shaped body having fiat sides and provided with means in the form of a rib disposed completely about the exterior surface thereof, an eye formed on the rib for receiving a suspension element for the block, guides simulating sheaves cast integrally with and within the body, the latter provided with spaced parallel openings extending through the block incident to the guides and said openings following the shape of the guides to provide flared outer ends therefor through which strands of said rigging may pass to operatively engage said guides.

4. A cast miniature block for use in the rigging of a ship model, comprising a one piece body of substantially oval configuration and provided with means in the form of a groove disposed completely about the exterior surface thereof and designed for receiving a suspension element for the block, strand receiving guides simulating sheaves cast integrally with and within the body, the latter provided with spaced parallel openings extending through the body incident to the guides and at right angles to the groove, and said openings following the shape of the guides to provide flared outer ends therefor through which strands of said rigging may pass to operatively engage said guides.

5. A cast miniature block for use in the rigging of a ship model, comprising a solid one piece cylindrical body having flat sides and provided with a groove disposed circumferentially about the rounded portion thereof to receive a suspension element for the block, and the body provided with openings extending longitudinally therethrough at right angles to the groove for the passage of strands of said rigging.

JOHN F. GILLESPIE.

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